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Dimensional Specs
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Notes
1. Due to our manufacturing process, point to point dimensions may not meet the ANSI B18.6.3-1972 (R1991) standard.

2. * #0-80 and No. 0 dimensions are actual. All other ceramic fasteners conform to ANSI B18.6.3-1972 R1991 standards as listed in the chart.

3. All ceramic screws and ceramic bolts are fully threaded.

4. All dimensions shown are in inches.

Dimensional Specifications - Hex Head Machine Screws & Bolts

Hex Head Fastener Dimensions Per ANSI B18.6.3-1972 (R1991) Standard
Size
Hex Head
Flat-to-Flat
Hex Head
Point-to-Point
Hex Head
Height
#0-80
.150 - .156
.171 min.
.043 - .050
#2-56
.120 - .125
.134 min.
.040 - .050
#4-40
.181 - .188
.202 min.
.049 - .060
#5-40 .181 - .188 .202 min. .058 - .070
#6-32
.244 - .250
.272 min.
.080 - .093
#8-32
.244 - .250
.272 min.
.096 - .110
#10-32 and #10-24
.305 - .312
.340 min.
.105 - .120
1/4"-20
.367 - .375
.409 min.
.172 - .190
5/16"-18
.489 - .500
.545 min.
.208 - .230
3/8"- 16
.551 - .562
.614 min.
.270 - .295

 

     

     

     

     

     
     
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    P.O. Box 300, 1467 East Main Street, Center Conway, NH 03813
    Tel: (603) 447-2090 | Fax: (603) 447-3906